dnrops
/
gimp
mirror of https://github.com/GNOME/gimp.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity
gimp/app/widgets/gimpcursor.c

427 lines
12 KiB
C
Raw Blame History

/* GIMP - The GNU Image Manipulation Program
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "config.h"
#include <gtk/gtk.h>
#include "widgets-types.h"
#include "gimpcursor.h"
#include "cursors/gimp-tool-cursors.h"
#define cursor_none_x_hot 10
#define cursor_none_y_hot 10
#define cursor_mouse_x_hot 3
#define cursor_mouse_y_hot 2
#define cursor_crosshair_x_hot 15
#define cursor_crosshair_y_hot 15
#define cursor_crosshair_small_x_hot 10
#define cursor_crosshair_small_y_hot 10
#define cursor_bad_x_hot 10
#define cursor_bad_y_hot 10
#define cursor_move_x_hot 10
#define cursor_move_y_hot 10
#define cursor_zoom_x_hot 8
#define cursor_zoom_y_hot 8
#define cursor_color_picker_x_hot 1
#define cursor_color_picker_y_hot 30
#define cursor_corner_top_left_x_hot 10
#define cursor_corner_top_left_y_hot 10
#define cursor_corner_top_right_x_hot 10
#define cursor_corner_top_right_y_hot 10
#define cursor_corner_bottom_left_x_hot 10
#define cursor_corner_bottom_left_y_hot 10
#define cursor_corner_bottom_right_x_hot 10
#define cursor_corner_bottom_right_y_hot 10
#define cursor_side_top_x_hot 10
#define cursor_side_top_y_hot 10
#define cursor_side_left_x_hot 10
#define cursor_side_left_y_hot 10
#define cursor_side_right_x_hot 10
#define cursor_side_right_y_hot 10
#define cursor_side_bottom_x_hot 10
#define cursor_side_bottom_y_hot 10
typedef struct _GimpCursor GimpCursor;
struct _GimpCursor
{
const guint8 *pixbuf_data;
const guint8 *pixbuf_data_bw;
const gint x_hot, y_hot;
GdkPixbuf *pixbuf;
GdkPixbuf *pixbuf_bw;
};
static GimpCursor gimp_cursors[] =
{
/* these have to match up with enum GimpCursorType in widgets-enums.h */
{
cursor_none,
cursor_none_bw,
cursor_none_x_hot, cursor_none_y_hot
},
{
cursor_mouse,
cursor_mouse_bw,
cursor_mouse_x_hot, cursor_mouse_y_hot
},
{
cursor_crosshair,
cursor_crosshair_bw,
cursor_crosshair_x_hot, cursor_crosshair_y_hot
},
{
cursor_crosshair_small,
cursor_crosshair_small_bw,
cursor_crosshair_small_x_hot, cursor_crosshair_small_y_hot
},
{
cursor_bad,
cursor_bad_bw,
cursor_bad_x_hot, cursor_bad_y_hot
},
{
cursor_move,
cursor_move_bw,
cursor_move_x_hot, cursor_move_y_hot
},
{
cursor_zoom,
cursor_zoom_bw,
cursor_zoom_x_hot, cursor_zoom_y_hot
},
{
cursor_color_picker,
cursor_color_picker_bw,
cursor_color_picker_x_hot, cursor_color_picker_y_hot
},
{
cursor_corner_top_left,
cursor_corner_top_left_bw,
cursor_corner_top_left_x_hot, cursor_corner_top_left_y_hot
},
{
cursor_corner_top_right,
cursor_corner_top_right_bw,
cursor_corner_top_right_x_hot, cursor_corner_top_right_y_hot
},
{
cursor_corner_bottom_left,
cursor_corner_bottom_left_bw,
cursor_corner_bottom_left_x_hot, cursor_corner_bottom_left_y_hot
},
{
cursor_corner_bottom_right,
cursor_corner_bottom_right_bw,
cursor_corner_bottom_right_x_hot, cursor_corner_bottom_right_y_hot
},
{
cursor_side_top,
cursor_side_top_bw,
cursor_side_top_x_hot, cursor_side_top_y_hot
},
{
cursor_side_left,
cursor_side_left_bw,
cursor_side_left_x_hot, cursor_side_left_y_hot
},
{
cursor_side_right,
cursor_side_right_bw,
cursor_side_right_x_hot, cursor_side_right_y_hot
},
{
cursor_side_bottom,
cursor_side_bottom_bw,
cursor_side_bottom_x_hot, cursor_side_bottom_y_hot
}
};
static GimpCursor gimp_tool_cursors[] =
{
/* these have to match up with enum GimpToolCursorType in widgets-enums.h */
{ NULL },
{ tool_rect_select, tool_rect_select_bw },
{ tool_ellipse_select, tool_ellipse_select_bw },
{ tool_free_select, tool_free_select_bw },
{ tool_polygon_select, tool_polygon_select_bw },
{ tool_fuzzy_select, tool_fuzzy_select_bw },
{ tool_paths, tool_paths_bw },
{ tool_paths_anchor, tool_paths_anchor_bw },
{ tool_paths_control, tool_paths_control_bw },
{ tool_paths_segment, tool_paths_segment_bw },
{ tool_iscissors, tool_iscissors_bw },
{ tool_move, tool_move_bw },
{ tool_zoom, tool_zoom_bw },
{ tool_crop, tool_crop_bw },
{ tool_resize, tool_resize_bw },
{ tool_rotate, tool_rotate_bw },
{ tool_shear, tool_shear_bw },
{ tool_perspective, tool_perspective_bw },
{ tool_flip_horizontal, tool_flip_horizontal_bw },
{ tool_flip_vertical, tool_flip_vertical_bw },
{ tool_text, tool_text_bw },
{ tool_color_picker, tool_color_picker_bw },
{ tool_bucket_fill, tool_bucket_fill_bw },
{ tool_blend, tool_blend_bw },
{ tool_pencil, tool_pencil_bw },
{ tool_paintbrush, tool_paintbrush_bw },
{ tool_airbrush, tool_airbrush_bw },
{ tool_ink, tool_ink_bw },
{ tool_clone, tool_clone_bw },
{ tool_heal, tool_heal_bw },
{ tool_eraser, tool_eraser_bw },
{ tool_smudge, tool_smudge_bw },
{ tool_blur, tool_blur_bw },
{ tool_dodge, tool_dodge_bw },
{ tool_burn, tool_burn_bw },
{ tool_measure, tool_measure_bw },
{ tool_hand, tool_hand_bw }
};
static GimpCursor gimp_cursor_modifiers[] =
{
/* these have to match up with enum GimpCursorModifier in widgets-enums.h */
{ NULL },
{ modifier_bad, modifier_bad },
{ modifier_plus, modifier_plus },
{ modifier_minus, modifier_minus },
{ modifier_intersect, modifier_intersect },
{ modifier_move, modifier_move },
{ modifier_resize, modifier_resize },
{ modifier_control, modifier_control },
{ modifier_anchor, modifier_anchor },
{ modifier_foreground, modifier_foreground },
{ modifier_background, modifier_background },
{ modifier_pattern, modifier_pattern },
{ modifier_join, modifier_join },
{ modifier_select, modifier_select }
};
static const GdkPixbuf *
get_cursor_pixbuf (GimpCursor *cursor,
gboolean bw)
{
GdkPixbuf **pixbuf;
if (bw)
pixbuf = &cursor->pixbuf_bw;
else
pixbuf = &cursor->pixbuf;
if (! *pixbuf)
*pixbuf = gdk_pixbuf_new_from_inline (-1,
bw ?
cursor->pixbuf_data_bw :
cursor->pixbuf_data,
FALSE, NULL);
g_return_val_if_fail (*pixbuf != NULL, NULL);
return *pixbuf;
}
GdkCursor *
gimp_cursor_new (GdkDisplay *display,
GimpCursorFormat cursor_format,
GimpHandedness cursor_handedness,
GimpCursorType cursor_type,
GimpToolCursorType tool_cursor,
GimpCursorModifier modifier)
{
GimpCursor *bmcursor = NULL;
GimpCursor *bmmodifier = NULL;
GimpCursor *bmtool = NULL;
GdkCursor *cursor;
GdkPixbuf *pixbuf;
gboolean bw;
g_return_val_if_fail (GDK_IS_DISPLAY (display), NULL);
g_return_val_if_fail (cursor_type < GIMP_CURSOR_LAST, NULL);
if (cursor_type <= (GimpCursorType) GDK_LAST_CURSOR)
return gdk_cursor_new_for_display (display, cursor_type);
g_return_val_if_fail (cursor_type >= GIMP_CURSOR_NONE, NULL);
/* disallow the small tool cursor with some cursors
*/
if (cursor_type <= GIMP_CURSOR_NONE ||
cursor_type == GIMP_CURSOR_CROSSHAIR ||
cursor_type == GIMP_CURSOR_ZOOM ||
cursor_type == GIMP_CURSOR_COLOR_PICKER ||
cursor_type >= GIMP_CURSOR_LAST)
{
tool_cursor = GIMP_TOOL_CURSOR_NONE;
}
/* don't allow anything with the empty cursor
*/
if (cursor_type == GIMP_CURSOR_NONE)
{
tool_cursor = GIMP_TOOL_CURSOR_NONE;
modifier = GIMP_CURSOR_MODIFIER_NONE;
}
/* some more sanity checks
*/
if (cursor_type == GIMP_CURSOR_MOVE &&
modifier == GIMP_CURSOR_MODIFIER_MOVE)
{
modifier = GIMP_CURSOR_MODIFIER_NONE;
}
/* when cursor is "corner" or "side" sides must be exchanged for
* left-hand-mice-flipping of pixbuf below
*/
if (cursor_handedness == GIMP_HANDEDNESS_LEFT)
{
if (cursor_type == GIMP_CURSOR_CORNER_TOP_LEFT)
{
cursor_type = GIMP_CURSOR_CORNER_TOP_RIGHT;
}
else if (cursor_type == GIMP_CURSOR_CORNER_TOP_RIGHT)
{
cursor_type = GIMP_CURSOR_CORNER_TOP_LEFT;
}
else if (cursor_type == GIMP_CURSOR_CORNER_BOTTOM_LEFT)
{
cursor_type = GIMP_CURSOR_CORNER_BOTTOM_RIGHT;
}
else if (cursor_type == GIMP_CURSOR_CORNER_BOTTOM_RIGHT)
{
cursor_type = GIMP_CURSOR_CORNER_BOTTOM_LEFT;
}
else if (cursor_type == GIMP_CURSOR_SIDE_LEFT)
{
cursor_type = GIMP_CURSOR_SIDE_RIGHT;
}
else if (cursor_type == GIMP_CURSOR_SIDE_RIGHT)
{
cursor_type = GIMP_CURSOR_SIDE_LEFT;
}
}
/* prepare the main cursor */
cursor_type -= GIMP_CURSOR_NONE;
bmcursor = &gimp_cursors[cursor_type];
/* prepare the tool cursor */
if (tool_cursor > GIMP_TOOL_CURSOR_NONE &&
tool_cursor < GIMP_TOOL_CURSOR_LAST)
{
bmtool = &gimp_tool_cursors[tool_cursor];
}
/* prepare the cursor modifier */
if (modifier > GIMP_CURSOR_MODIFIER_NONE &&
modifier < GIMP_CURSOR_MODIFIER_LAST)
{
bmmodifier = &gimp_cursor_modifiers[modifier];
}
if (cursor_format != GIMP_CURSOR_FORMAT_BITMAP &&
gdk_display_supports_cursor_alpha (display) &&
gdk_display_supports_cursor_color (display))
{
bw = FALSE;
}
else
{
bw = TRUE;
}
pixbuf = gdk_pixbuf_copy (get_cursor_pixbuf (bmcursor, bw));
if (bmmodifier || bmtool)
{
gint width = gdk_pixbuf_get_width (pixbuf);
gint height = gdk_pixbuf_get_height (pixbuf);
if (bmmodifier)
gdk_pixbuf_composite (get_cursor_pixbuf (bmmodifier, bw), pixbuf,
0, 0, width, height,
0.0, 0.0, 1.0, 1.0,
GDK_INTERP_NEAREST, bw ? 255 : 200);
if (bmtool)
gdk_pixbuf_composite (get_cursor_pixbuf (bmtool, bw), pixbuf,
0, 0, width, height,
0.0, 0.0, 1.0, 1.0,
GDK_INTERP_NEAREST, bw ? 255 : 200);
}
/* flip the cursor if mouse setting is left-handed */
if (cursor_handedness == GIMP_HANDEDNESS_LEFT)
{
GdkPixbuf *flipped = gdk_pixbuf_flip (pixbuf, TRUE);
gint width = gdk_pixbuf_get_width (flipped);
cursor = gdk_cursor_new_from_pixbuf (display, flipped,
(width - 1) - bmcursor->x_hot,
bmcursor->y_hot);
g_object_unref (flipped);
}
else
{
cursor = gdk_cursor_new_from_pixbuf (display, pixbuf,
bmcursor->x_hot,
bmcursor->y_hot);
}
g_object_unref (pixbuf);
return cursor;
}
void
gimp_cursor_set (GtkWidget *widget,
GimpCursorFormat cursor_format,
GimpHandedness cursor_handedness,
GimpCursorType cursor_type,
GimpToolCursorType tool_cursor,
GimpCursorModifier modifier)
{
GdkCursor *cursor;
g_return_if_fail (GTK_IS_WIDGET (widget));
g_return_if_fail (gtk_widget_get_realized (widget));
cursor = gimp_cursor_new (gtk_widget_get_display (widget),
cursor_format,
cursor_handedness,
cursor_type,
tool_cursor,
modifier);
gdk_window_set_cursor (gtk_widget_get_window (widget), cursor);
gdk_cursor_unref (cursor);
}
Reference in New Issue View Git Blame Copy Permalink